Stem winding and setting attachment for watches



2 Sheets Sheet 1.

(No Model.)

H. ABBOTT.

STEM WINDING AND SETTING ATTACHMENT FOR WATCHES. No. 335,733.

Patented Rab. 9, 1886.

N, PETERS. Phm-Lnhu u hcr, Washm mnv 11C.

2 Sheets-Sheet 2.

(No Model.) H. ABBOTT.

STEM WINDING AND SETTING ATTACHMENT FOR WATCHES. No. 335,733. Patented Feb. 9, 1886.

J. A Q1 WASA X ig N. PETERS. PhotnUlhognpher, waning. 0.0.

UNITED STATES ATENT tries.

HENRY ABBOTT, OF NEWARK, NFJW JERSEY.

SPECIFICATION forming part of Letters Patent No. 385,733, dated February 9, 1886.

Application filed October 1, 1885.

To aZZ whom it may concern:

Be it known that I, HENRY ABBOTT, a citizen of the United States, residing at Newark, in the county of Essex and State of New J ersey, have invented certain new and useful Improvements in Stem-finding and Hand-Setting Attachments for Watches, of which the following is a specification.

My invention relates to a class of stemwinding and hand-setting watches in which connection is made between the slem-driven train and the dial-wheels by means of the movement endwise of the stem, and in which, on the removal of the said stem from the watch, the said train remains in engagement with the said dial-wheels.

My said invention consists,principally,in so improving the form and arrangement of the parts of said winding and setting mechanism as to cause the saidtrain to become automatically disengaged from the dial-wheels by the act of removing the said stem from the watch, and has for its object to thus relieve the timetrain and mainspring of the watch from the additional strain put upon them by such engagement of the winding and hand-setting train with the dialwheels, and to enable the wateh=movement to run and keep time equally well, whether in its case with the stem inserted or out of its case with the stem removed, (said stem in watches of this class being usually a fixture of the case.)

My improvement relates more particularly to the class of watches described in Letters Patent No. 295,484, dated March 18, 1884, reissued No. 10,580, April 14., 1885. These watches, as therein described and as heretofore constructed and for sale in this market, have their stem-driven trains normally, or whenever the stem is removed therefrom, in engagement with the dial-wheels, thus adding the weight and friction of the winding and setting mechanism to the running or time train of the watch,and rendering it impracticable to run or regulate the watch-movement while out of its case, or while its stem is removed therefrom.

I attain the object above stated by an arrangement of the parts composing the winding and setting mechanism, which permits a new and additional movement of the pivoted yoke G on its center, carrying its outer end, with Serial No. 178,714. (No model.)

the intermediate winding-wheel, H, farther away from the barrel-arbor wheel I, and at the same time forcing the intermediate settingwheel, L, down and out of engagement with the dial-wheels upon removing the stem entirely from the watch, thus placing the wheels of the stem-driven train out of engagement with both barrel-arbor wheel and dial-wheels. This arrangement of parts is illustrated in the accompanying drawings, which form a part of this specification, and in which Figure l is a plan view of a portion of a watch of the class above named, showing the position of the winding and setting mechanism when the movement is in the case, and with the stem inserted to the inner limit of its motion endwise, and with the wheels of said mechanism in engagement for winding. Fig. 2 is a like view of the same, but with the stem withdrawn to the outer limit of its motion and with the wheels in engagement for setting the hands. Fig. 3 is a like viewofthe same watch-movement when separated from its ease and with the stem removed therefrom, showing the new position of the yoke G, with the wheels of the stem-driven train disengaged from both barrel-arbor Wheel I and dial-wheels K. Fig. 4 is an enlarged View of the loose sliding bar R, of improved shape, which permits the additional movement of the yoke G, as shown in Fig. 3,without changing the length of the stem, which in watches of this class is usually made of standard length, so as to be interchangeable. Fig. 5 is a sectional view through the yoke G, plate B, and pinion D, showing the position of the stem 0, sliding bar R, spring N, and intermediate wheel L, when the parts are in gear for winding, as in Fig. 1. Fig. 6 is the same as Fig. 5, but with the parts in position for setting the hands, as in Fig. 2. Fig. 7 is the same as Fig. 5, but with the stem removed and with the intermediate wheel L depressed and the parts in position shown in Fig. 3. Fig. 8 is a sectional view of the hollow pinion D. Fig. 9 is an end view of the same, showing the small end 1" of the sliding bar R where it passes through the square hole in the pinion D.

Similar letters of reference indicate like parts in each of the views.

A. represents a portion of the center of a watch-case; B, the main plate of a watchmovement; 0, the stem; D, the hollow pinion of the stem-driven train; E, the crown-wheel; F, the hub on which the crown-wheel and yoke are pivoted. 1

H is the intermediate winding-wheel, pivoted to the yoke G on its under side.

Iis the barrel-arbor wheel, or mainwinding- Wheel; K, the minute-wheel and cannon-pinion, also called dial-wheels, L, the intermediate setting-wheel, pivoted to the main plate B on a stud, and shiftable on said stud in a line perpendicular to its plane of rotation, being forced upward against the yoke G by means of a spring, M, a beveled hub on the upper side of said wheel falling into a recess formed in the under side of the yoke G, when by the movement of said yoke on its pivot said recess is brought into line with said hub, thus raising said wheel L into the plane of the crown-wheel Eand the dial-wheels K and engaging the stem-driven train with the dialwheels, the said wheel L being forced down and out of engagement with said dial-wheels and said crown-wheel by the pressure of said yoke against the beveled sides of its hub,when said yoke is turned on its pivotin. either direction.

N is a spring lever on the under side of the plate B, (shown by dotted lines in Fig. 1,) said springbeing in engagement with a stud attached to the yoke G at its outer end, and pressing against the inner end of the sliding bar R, thus communicating the end-thrust of the stem 0 to the yoke G and causing said yoke to turn on its pivot F.

R is a sliding bar or plunger adapted to fit loosely in the round portion of the hollow pinion D, and to move endwise therein, and having its outer end reduced in diameter, as at 1', to adapt it to pass through the squared portion of the hollow pinion D at its outer end, thus permitting it to follow the stem 0,

when said stem is removed from the watch, nearly or quite through the hollow pinion D, and giving the additional movement to the yoke G, as shown in Fig. 3.

The operation of this mechanism is as follows: The movement being in its case, the stem is inserted to the inner limit of its motion, and, pressing against the outer end of the sliding bar R, forces the spring-lever N in toward the center of the watch, causing the yoke G to turn on its pivot F until the intermediate wheel H is brought into engagement with the barrel-arbor wheel I. At the same time the intermediate setting-wheel,L,is forced down and out of engagement with'the wheels E and K. The stem 0 may now be rotated and the watch wound. (See Fig. 1.) The stem 0 being drawn out to the outer limit of its motion against a stop usually provided in the case, the spring-lever N will follow it, causing the yoke G to turn on its pivot F until the recess on its under side comes in line with the beveled hub on the wheel L, when the wheel L will fall into said recess and engage with the wheels E and K. At the same time the wheel H on the outer end of the yoke G will be disengaged'from the barrel-arbor wheel I. stem 0 may now be rotated and the hands turned in either direction, as required. (See Fig. 2.) Upon withdrawing the stem 0 entirely from the watch the spring-lever N will continue its movement outward until it rests against the inner end of the hollow pinion D, and the sliding bar R, with its reduced outer end, has followed the outward movement of the stem 0 entirely through the square hole in the outer end of the hollow pinion D. At thesame time the yoke G, following the movement of the spring-lever N, its outer end, with the wheel H, is carried farther away fromthe wheel I, whilethe wheel L is again forced down and out of engagement with the wheels E and K. In this position of the yoke G, as shown in Fig. 3, the stem driven train is at the same time out of engagement with both dial-wheels and barrel-arbor wheel, and the time-train of the watch is free to run, and can be regulated as well as if the movement were in its case and the stem inserted, as in Fig. 1.

I do not claim, broadly, the mechanism herein described; but the form and arrangement of parts which permit the position of the yoke G, as shown in Fig. 3, with the stemdriven train out of engagement with both dialwheels and barrel-arbor wheel, constitutes a feature of my invention.

Having thus fully described the nature and merits of my invention, what I claim, and desire to secure by Letters Patent, is

1. As an improvement in a stem winding and hand-setting watch provided with a stem that is shiftable endwise, and an intermediate wheel that is shiftable in a line perpendicular to its plane of rotation, a pivoted yoke that is adapted, upon the removal of the stem from the watch, to take such position automatically as will disconnect the stem-driven train from both the dial-wheels and the barrel arbor wheel, substantially as and for the purpose specified.

2. As an improvement in a stem winding and hand-setting watch provided with a stem that is shiftable endwise, and a pivoted yoke, an intermediate wheel that is shiftable in a line perpendicular to its plane of rotation by means of the movement of said yoke on its pivot, and that is adapted to be automatically disengaged from the dial-wheels of said watch by the act of removing said stem from the watch, substantially as and for the purpose The its motion said train will be in engagement ion D, stem C,spring-leverN, yoke G, and in- With the dial-wheels, and when said stem is termediatewheel L, substantially as described, [0 removed entirely from the Watch said train and for the purpose specified. will be disengaged from both dial-wheels and T T barrel-arbor Wheel, substantially as and for HELRX ABBOTT the purpose specified. \Vitnesses:

4. The sliding bar R, having its outer end J. T. SCOTT, reduced, as at 7', in combination with the pin- ALBERT KAMP. 

